root/ompi/mca/io/romio321/romio/mpi-io/read_orde.c

DEFINITIONS

1. MPI_File_read_ordered_end

   1 /* -*- Mode: C; c-basic-offset:4 ; indent-tabs-mode:nil ; -*- */
   2 /* 
   3  *
   4  *   Copyright (C) 1997 University of Chicago. 
   5  *   See COPYRIGHT notice in top-level directory.
   6  */
   7 
   8 #include "mpioimpl.h"
   9 
  10 #ifdef HAVE_WEAK_SYMBOLS
  11 
  12 #if defined(HAVE_PRAGMA_WEAK)
  13 #pragma weak MPI_File_read_ordered_end = PMPI_File_read_ordered_end
  14 #elif defined(HAVE_PRAGMA_HP_SEC_DEF)
  15 #pragma _HP_SECONDARY_DEF PMPI_File_read_ordered_end MPI_File_read_ordered_end
  16 #elif defined(HAVE_PRAGMA_CRI_DUP)
  17 #pragma _CRI duplicate MPI_File_read_ordered_end as PMPI_File_read_ordered_end
  18 /* end of weak pragmas */
  19 #elif defined(HAVE_WEAK_ATTRIBUTE)
  20 int MPI_File_read_ordered_end(MPI_File fh, void *buf, MPI_Status *status) __attribute__((weak,alias("PMPI_File_read_ordered_end")));
  21 #endif
  22 
  23 /* Include mapping from MPI->PMPI */
  24 #define MPIO_BUILD_PROFILING
  25 #include "mpioprof.h"
  26 #endif
  27 
  28 /*@
  29     MPI_File_read_ordered_end - Complete a split collective read using shared file pointer
  30 
  31 Input Parameters:
  32 . fh - file handle (handle)
  33 
  34 Output Parameters:
  35 . buf - initial address of buffer (choice)
  36 . status - status object (Status)
  37 
  38 .N fortran
  39 @*/
  40 int MPI_File_read_ordered_end(MPI_File fh, void *buf, MPI_Status *status)
  41 {
  42     int error_code=MPI_SUCCESS;
  43     ADIO_File adio_fh;
  44     static char myname[] = "MPI_FILE_READ_ORDERED_END";
  45 
  46     MPIU_UNREFERENCED_ARG(buf);
  47 
  48     ROMIO_THREAD_CS_ENTER();
  49 
  50     adio_fh = MPIO_File_resolve(fh);
  51 
  52     /* --BEGIN ERROR HANDLING-- */
  53     MPIO_CHECK_FILE_HANDLE(adio_fh, myname, error_code);
  54 
  55     if (!(adio_fh->split_coll_count))
  56     {
  57         error_code = MPIO_Err_create_code(MPI_SUCCESS, MPIR_ERR_RECOVERABLE,
  58                                           myname, __LINE__, MPI_ERR_IO, 
  59                                           "**iosplitcollnone", 0);
  60         error_code = MPIO_Err_return_file(adio_fh, error_code);
  61         goto fn_exit;
  62     }
  63     /* --END ERROR HANDLING-- */
  64 
  65 #ifdef HAVE_STATUS_SET_BYTES
  66     if (status != MPI_STATUS_IGNORE)
  67        *status = adio_fh->split_status;
  68 #endif
  69     adio_fh->split_coll_count = 0;
  70 
  71 fn_exit:
  72     ROMIO_THREAD_CS_EXIT();
  73 
  74     return error_code;
  75 }